US 12,286,772 B2
System for fixing wear elements on earth-moving machines
Carlos Amat Holgado, Barcelona (ES); and Javier Jimenez Garcia, Barcelona (ES)
Assigned to METALOGENIA RESEARCH & TECHNOLOGIES, S.L., Barcelona (ES)
Appl. No. 17/435,378
Filed by METALOGENIA RESEARCH & TECHNOLOGIES, S.L., Barcelona (ES)
PCT Filed Mar. 2, 2020, PCT No. PCT/ES2020/070149
§ 371(c)(1), (2) Date Aug. 31, 2021,
PCT Pub. No. WO2020/178466, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. PCT/ES2019/070125 (WO), filed on Mar. 1, 2019.
Prior Publication US 2022/0145594 A1, May 12, 2022
Int. Cl. E02F 9/28 (2006.01)
CPC E02F 9/2841 (2013.01) [E02F 9/2825 (2013.01); E02F 9/2833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for fixing wear elements in earth-moving machines, comprising:
a stem that rotates between a locking position and a release position, said stem comprising an inner end and an outer end along a longitudinal axis, wherein said stem comprises a plurality of locking elements comprising a first deformable locking element placed at and extending from said inner end of said stem perpendicularly to said longitudinal axis as a tip terminating at a front part, and a second locking element arranged towards said outer end of said stem;
wherein said first locking element is adapted to be received in a cavity of a portion of a wear element or a portion of an earth-moving machine mounting said wear element, said tip being formed from a deformable material adapted to lock movement of said stem by deformation when rotated from said release position to said locking position when received in said cavity; and wherein said front part comprises a greater thickness at said front part than a remainder of said tip, said greater thickness adapted to compress along said longitudinal axis into said cavity during rotation of said stem from said release position and said locking position.